Chuck key



FIG. 1 is a left side view of a chuck key showing my new design, theright side view being a mirror image thereof;

FIG. 2 is a front view thereof;

FIG. 3 is a cross-sectional view thereof taken along line III of FIG. 2;

FIG. 4 is a rear view thereof;

FIG. 5 is a cross-sectional view thereof taken along line V--V of FIG.4;

FIG. 6 is a cross-sectional view thereof taken along line VI--VI of FIG.4;

FIG. 7 is a top view thereof, the bottom view being identical thereto;

FIG. 8 is a perspective view thereof.

The ornamental design for a chuck key, as shown and described.